| Parameters |
Unit |
12kV |
17.5 kV |
24kV |
|
Rated Voltage |
kV |
12 |
17.5 |
24 |
|
Maximum service voltage |
kV |
12 |
17.5 |
24 |
|
Withstand Voltage to earth/between phases |
kV |
28 |
38 |
50 |
|
Withstand Voltage across isolating gap |
kV |
32 |
45 |
60 |
|
Impulse withstand voltage to earth/between phases |
kV |
75 |
95 |
125 |
|
Impulse withstand voltage cross isolating gap |
kV |
85 |
110 |
145 |
|
Rated Current |
A |
630 |
630 |
630 |
|
Breaking capacity for no-load transformers |
A |
16 |
16 |
16 |
|
Breaking capacity for no-load lines and cables |
A |
25 |
25 |
25 |
|
Short-time current (for AL or BL type without fuses) |
kA |
20/3sec |
20/3sec |
20/3sec |
|
Making Capacity |
kA |
50 |
40 |
40 |
|
Prospective breaking capacity (with fuses) |
kA |
50 |
40 |
31.5 |
|
Transfomer protection ratings |
kVA |
800 |
700 |
630 |
|
Mechanical Endurance |
cycles |
4000 |
4000 |
4000 |
|
Electrical Endurance |
cycles |
2000 |
2000 |
2000 |
|
Minimum panel width |
mm |
400 |
500 |
600 |
|
Minimum panel height |
mm |
1650 |
1850 |
2000 |
|
Minimum panel depth |
mm |
800 |
900 |
1100 |